– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Sun 24 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Sun 24 May Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Sun 24 May Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryModerate rain (total 10mm), heaviest on Mon afternoon. Very mild (max 17°C on Sun afternoon, min 7°C on Mon night). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 6mm), mostly falling on Fri afternoon. Warm (max 20°C on Thu afternoon, min 6°C on Fri night). Wind will be generally light. | |||||||||||||||||
Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  | | |  | |  |  | | | |  | | | |
some clouds | some clouds | some clouds | light rain | light rain | light rain | light rain | light rain | rain shwrs | some clouds | clear | clear | clear | clear | some clouds | cloudy | light rain | rain shwrs | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | 0.3 | 4 | 3 | 1.5 | 0.5 | 0.1 | — | — | — | — | — | — | — | 2 | 4 | |
max °C | 14 | 17 | 15 | 12 | 9 | 9 | 8 | 10 | 10 | 16 | 19 | 16 | 18 | 20 | 16 | 11 | 10 | 9 |
min °C | 11 | 16 | 12 | 12 | 9 | 7 | 8 | 9 | 9 | 11 | 19 | 12 | 15 | 20 | 9 | 10 | 9 | 6 |
11 | 16 | 10 | 10 | 7 | 7 | 8 | 9 | 9 | 11 | 19 | 12 | 15 | 20 | 9 | 10 | 9 | 6 | |
2500 | 2750 | 2700 | 2100 | 1950 | 1750 | 1850 | 2400 | 3500 | 3800 | 3700 | 3650 | 3700 | 3700 | 3450 | 2500 | 2100 | 1750 | |
Cloud base (m) | 1950 | 2600 | 2850 | 2100 | 650 | 550 | 550 | 600 | 1500 | 850 | 1900 | 9400 | 9100 | 1550 | 700 | 600 | ||
 | 5:16 | — | — | 5:15 | — | — | 5:13 | — | — | 5:13 | — | — | 5:11 | — | — | 5:11 | — | — |
 | — | — | 8:52 | — | — | 8:53 | — | — | 8:54 | — | — | 8:57 | — | — | 8:58 | — | — | 8:59 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Moderate rain (total 10mm), heaviest on Mon afternoon. Very mild (max 17°C on Sun afternoon, min 7°C on Mon night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 6mm), mostly falling on Fri afternoon. Warm (max 20°C on Thu afternoon, min 6°C on Fri night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
 | |||||
Bellingham Airport |  |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.